diff --git a/copyparty/web/browser.css b/copyparty/web/browser.css
index c2e40414..13a0835a 100644
--- a/copyparty/web/browser.css
+++ b/copyparty/web/browser.css
@@ -1265,6 +1265,8 @@ html.y #ops svg circle {
 .opbox input {
 	position: relative;
 	margin: .5em;
+}
+#op_cfg input[type=text] {
 	top: -.3em;
 }
 .opview input[type=text] {
diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index 8771847a..d3019695 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -125,7 +125,8 @@ var Ls = {
 
 		"cut_az": "upload files in alphabetical order, rather than smallest-file-first$N$Nalphabetical order can make it easier to eyeball if something went wrong on the server, but it makes uploading slightly slower on fiber / LAN",
 
-		"cut_nag": "audible alert when upload completes",
+		"cut_nag": "OS notification when upload completes$N(only if the browser or tab is not active)",
+		"cut_sfx": "audible alert when upload completes$N(only if the browser or tab is not active)",
 
 		"cut_mt": "use multithreading to accelerate file hashing$N$Nthis uses web-workers and requires$Nmore RAM (up to 512 MiB extra)$N$N30% faster https, 4.5x faster http,$Nand 5.3x faster on android phones",
 
@@ -493,7 +494,8 @@ var Ls = {
 
 		"cut_az": "last opp filer i alfabetisk rekkefølge, istedenfor minste-fil-først$N$Nalfabetisk kan gjøre det lettere å anslå om alt gikk bra, men er bittelitt tregere på fiber / LAN",
 
-		"cut_nag": "lydvarsel når opplastning er ferdig",
+		"cut_nag": "meldingsvarsel når opplastning er ferdig$N(kun on nettleserfanen ikke er synlig)",
+		"cut_sfx": "lydvarsel når opplastning er ferdig$N(kun on nettleserfanen ikke er synlig)",
 
 		"cut_mt": "raskere befaring ved å bruke hele CPU'en$N$Ndenne funksjonen anvender web-workers$Nog krever mer RAM (opptil 512 MiB ekstra)$N$N30% raskere https, 4.5x raskere http,$Nog 5.3x raskere på android-telefoner",
 
@@ -922,6 +924,7 @@ ebi('op_cfg').innerHTML = (
 	'		<a id="flag_en" class="tgl btn" href="#" tt="' + L.cut_flag + '">💤</a>\n' +
 	'		<a id="u2sort" class="tgl btn" href="#" tt="' + L.cut_az + '">az</a>\n' +
 	'		<a id="upnag" class="tgl btn" href="#" tt="' + L.cut_nag + '">🔔</a>\n' +
+	'		<a id="upsfx" class="tgl btn" href="#" tt="' + L.cut_sfx + '">🔊</a>\n' +
 	'		</td>\n' +
 	'	</div>\n' +
 	'</div>\n' +
diff --git a/copyparty/web/up2k.js b/copyparty/web/up2k.js
index d6406d5c..152c4b54 100644
--- a/copyparty/web/up2k.js
+++ b/copyparty/web/up2k.js
@@ -713,6 +713,9 @@ function Donut(uc, st) {
         strobes = ['████████████████', '________________', '████████████████'];
         tstrober = setInterval(strobe, 300);
 
+        if (uc.upsfx && actx && actx.state != 'suspended')
+            sfx();
+
         // firefox may forget that filedrops are user-gestures so it can skip this:
         if (uc.upnag && window.Notification && Notification.permission == 'granted')
             new Notification(uc.nagtxt);
@@ -724,6 +727,35 @@ function Donut(uc, st) {
         if (!txt)
             clearInterval(tstrober);
     }
+
+    function sfx() {
+        var osc = actx.createOscillator(),
+            gain = actx.createGain(),
+            gg = gain.gain,
+            ft = [660, 880, 440, 660, 880],
+            ofs = 0;
+
+        osc.connect(gain);
+        gain.connect(actx.destination);
+        var ct = actx.currentTime + 0.03;
+
+        osc.type = 'triangle';
+        while (ft.length)
+            osc.frequency.setTargetAtTime(
+                ft.shift(), ct + (ofs += 0.05), 0.001);
+
+        gg.value = 0.15;
+        gg.setTargetAtTime(0.8, ct, 0.01);
+        gg.setTargetAtTime(0.3, ct + 0.13, 0.01);
+        gg.setTargetAtTime(0, ct + ofs + 0.05, 0.02);
+
+        osc.start();
+        setTimeout(function () {
+            osc.stop();
+            osc.disconnect();
+            gain.disconnect();
+        }, 500);
+    }
 }
 
 
@@ -827,13 +859,15 @@ function up2k_init(subtle) {
     bcfg_bind(uc, 'multitask', 'multitask', true, null, false);
     bcfg_bind(uc, 'potato', 'potato', false, set_potato, false);
     bcfg_bind(uc, 'ask_up', 'ask_up', true, null, false);
-    bcfg_bind(uc, 'flag_en', 'flag_en', false, apply_flag_cfg);
     bcfg_bind(uc, 'fsearch', 'fsearch', false, set_fsearch, false);
-    bcfg_bind(uc, 'turbo', 'u2turbo', turbolvl > 1, draw_turbo, false);
-    bcfg_bind(uc, 'datechk', 'u2tdate', turbolvl < 3, null, false);
-    bcfg_bind(uc, 'az', 'u2sort', u2sort.indexOf('n') + 1, set_u2sort, false);
-    bcfg_bind(uc, 'hashw', 'hashw', !!window.WebAssembly && (!subtle || !CHROME || MOBILE), set_hashw, false);
-    bcfg_bind(uc, 'upnag', 'upnag', false, set_upnag, false);
+
+    bcfg_bind(uc, 'flag_en', 'flag_en', false, apply_flag_cfg);
+    bcfg_bind(uc, 'turbo', 'u2turbo', turbolvl > 1, draw_turbo);
+    bcfg_bind(uc, 'datechk', 'u2tdate', turbolvl < 3, null);
+    bcfg_bind(uc, 'az', 'u2sort', u2sort.indexOf('n') + 1, set_u2sort);
+    bcfg_bind(uc, 'hashw', 'hashw', !!window.WebAssembly && (!subtle || !CHROME || MOBILE), set_hashw);
+    bcfg_bind(uc, 'upnag', 'upnag', false, set_upnag);
+    bcfg_bind(uc, 'upsfx', 'upsfx', false);
 
     var st = {
         "files": [],
@@ -2647,7 +2681,7 @@ function up2k_init(subtle) {
                 nopenag();
         }
 
-        if (!window.Notification)
+        if (!window.Notification || !HTTPS)
             return nopenag();
 
         if (en && Notification.permission == 'default')